 They train 12 hours a day, six days a week on German military bases. Several hundred Ukrainians are learning how to use the Leopard 2 tanks, which Kiev's allies hope will change the course of the war. It all starts in a simulator, as only 20 percent of Ukrainian soldiers have experience handling the battle tanks. This way we don't break the machines and you can see that there is more space. We do it with them once, then we do it alone, then we check together and they start again like at school. The training is scheduled to last just five weeks, compared to the standard three months. Our families are praying we'll return with these new tanks as quickly as possible. The Leopard 2 is revolutionary compared to the Soviet tanks that Ukrainian troops are used to, as this German army commander explains. The driver can put the vehicle in night vision mode from both the front and the back. And here you see the anti-mine protection. The big advantage though is this extremely stable 120mm gun, thanks to a large number of sensors and digital fire control system, the gun can fire and hit its target, even when travelling at 70 kilometres per hour and on uneven terrain. The German government, though hesitant to deliver the tanks at first, has pledged to give 18 of them to Ukraine by the end of the month and encouraged countries like Sweden and Portugal to speed up their own deliveries.